Solve the quadratic equation by completing the square . x ^ 2 + 4x - 3 = 0

a) x=4 pm sqrt 7

b) x=2 pm sqrt 7

c)x=-4 pm sqrt 7

d) x=-2 pm sqrt 7

D

Step-by-step explanation:

x²+4x=3

add 4 both sides

x²+4x+4=7

(x+2)²=7

x=-2±√7

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5